Sony A580

Had mine for over a year. I feel no pressing need to replace it. Found all kinds of reasons not to move up to the A57, A77 or the A99 - nothing against SLT technology. However, I am thinking about a backup camera or second smaller camera. Since I have many Sony and Minolta lens would lean towards a NEX - don't need to pull the trigger yet - but do want something by this spring or summer for the many 150th Civil War reenactments up coming.